That’s actually not very much compared to someone like Bloomberg.
[0] https://www.cbsnews.com/news/koch-brothers-network-will-spen...
As the article notes, Trump (who was not Koch-backed) won with very little spending compared to his big-money backed conventional GOP opponents. They decided to step back and spend less in 2016 as a result, since they didn’t support either Trump or Hillary.
It shows Koch is still very actively making the same mistake.
I mean, these guys are all sociopaths, so what should one expect?
https://www.bloomberg.com/news/articles/2020-07-01/billionai...
https://www.theguardian.com/commentisfree/2019/jun/10/billio...